Home / 15,267.18-21,071.94-9,300.78

Finding the Fourth Proportional to 15,267.18, 21,071.94 and 9,300.78

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Solution

The fourth proportional to 15,267.18, 21,071.94 and 9,300.78 is: 12,837.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,267.18 : 21,071.94 = 9,300.78 : x
  2. Step 2: Convert to fraction form
    15,267.18/21,071.94 = 9,300.78/x
  3. Step 3: Cross multiply
    15,267.18x = 21,071.94 × 9,300.78
  4. Step 4: Simplify right side
    15,267.18x = 195,985,478.11
  5. Step 5: Solve for x
    x = 195,985,478.11/15,267.18
  6. Step 6: Final answer
    x = 12,837.05

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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.