Home / 15,598.40-23,397.60-13,812.80

Finding the Fourth Proportional to 15,598.40, 23,397.60 and 13,812.80

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Solution

The fourth proportional to 15,598.40, 23,397.60 and 13,812.80 is: 20,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,598.40 : 23,397.60 = 13,812.80 : x
  2. Step 2: Convert to fraction form
    15,598.40/23,397.60 = 13,812.80/x
  3. Step 3: Cross multiply
    15,598.40x = 23,397.60 × 13,812.80
  4. Step 4: Simplify right side
    15,598.40x = 323,186,369.28
  5. Step 5: Solve for x
    x = 323,186,369.28/15,598.40
  6. Step 6: Final answer
    x = 20,719.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.