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Finding the Fourth Proportional to 12,000.40, 16,560.16 and 7,526.64

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Solution

The fourth proportional to 12,000.40, 16,560.16 and 7,526.64 is: 10,386.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,000.40 : 16,560.16 = 7,526.64 : x
  2. Step 2: Convert to fraction form
    12,000.40/16,560.16 = 7,526.64/x
  3. Step 3: Cross multiply
    12,000.40x = 16,560.16 × 7,526.64
  4. Step 4: Simplify right side
    12,000.40x = 124,642,362.66
  5. Step 5: Solve for x
    x = 124,642,362.66/12,000.40
  6. Step 6: Final answer
    x = 10,386.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.