Home / 15,429.90-23,130.78-5,562.18

Finding the Fourth Proportional to 15,429.90, 23,130.78 and 5,562.18

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Solution

The fourth proportional to 15,429.90, 23,130.78 and 5,562.18 is: 8,338.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,429.90 : 23,130.78 = 5,562.18 : x
  2. Step 2: Convert to fraction form
    15,429.90/23,130.78 = 5,562.18/x
  3. Step 3: Cross multiply
    15,429.90x = 23,130.78 × 5,562.18
  4. Step 4: Simplify right side
    15,429.90x = 128,657,561.90
  5. Step 5: Solve for x
    x = 128,657,561.90/15,429.90
  6. Step 6: Final answer
    x = 8,338.20

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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.