Home / 14,312.28-19,645.59-12,705.24

Finding the Fourth Proportional to 14,312.28, 19,645.59 and 12,705.24

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Solution

The fourth proportional to 14,312.28, 19,645.59 and 12,705.24 is: 17,439.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,312.28 : 19,645.59 = 12,705.24 : x
  2. Step 2: Convert to fraction form
    14,312.28/19,645.59 = 12,705.24/x
  3. Step 3: Cross multiply
    14,312.28x = 19,645.59 × 12,705.24
  4. Step 4: Simplify right side
    14,312.28x = 249,601,935.89
  5. Step 5: Solve for x
    x = 249,601,935.89/14,312.28
  6. Step 6: Final answer
    x = 17,439.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.