Home / 13,925.04-20,870.10-9,955.68

Finding the Fourth Proportional to 13,925.04, 20,870.10 and 9,955.68

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Solution

The fourth proportional to 13,925.04, 20,870.10 and 9,955.68 is: 14,921.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,925.04 : 20,870.10 = 9,955.68 : x
  2. Step 2: Convert to fraction form
    13,925.04/20,870.10 = 9,955.68/x
  3. Step 3: Cross multiply
    13,925.04x = 20,870.10 × 9,955.68
  4. Step 4: Simplify right side
    13,925.04x = 207,776,037.17
  5. Step 5: Solve for x
    x = 207,776,037.17/13,925.04
  6. Step 6: Final answer
    x = 14,921.04

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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.