Home / 15,459.80-21,333.38-8,746.14

Finding the Fourth Proportional to 15,459.80, 21,333.38 and 8,746.14

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Solution

The fourth proportional to 15,459.80, 21,333.38 and 8,746.14 is: 12,069.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,459.80 : 21,333.38 = 8,746.14 : x
  2. Step 2: Convert to fraction form
    15,459.80/21,333.38 = 8,746.14/x
  3. Step 3: Cross multiply
    15,459.80x = 21,333.38 × 8,746.14
  4. Step 4: Simplify right side
    15,459.80x = 186,584,728.15
  5. Step 5: Solve for x
    x = 186,584,728.15/15,459.80
  6. Step 6: Final answer
    x = 12,069.03

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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.