Home / 14,130.60-19,476.74-9,931.56

Finding the Fourth Proportional to 14,130.60, 19,476.74 and 9,931.56

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Solution

The fourth proportional to 14,130.60, 19,476.74 and 9,931.56 is: 13,689.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,130.60 : 19,476.74 = 9,931.56 : x
  2. Step 2: Convert to fraction form
    14,130.60/19,476.74 = 9,931.56/x
  3. Step 3: Cross multiply
    14,130.60x = 19,476.74 × 9,931.56
  4. Step 4: Simplify right side
    14,130.60x = 193,434,411.91
  5. Step 5: Solve for x
    x = 193,434,411.91/14,130.60
  6. Step 6: Final answer
    x = 13,689.04

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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.