Home / 13,547.56-18,689.70-7,956.04

Finding the Fourth Proportional to 13,547.56, 18,689.70 and 7,956.04

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Solution

The fourth proportional to 13,547.56, 18,689.70 and 7,956.04 is: 10,975.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,547.56 : 18,689.70 = 7,956.04 : x
  2. Step 2: Convert to fraction form
    13,547.56/18,689.70 = 7,956.04/x
  3. Step 3: Cross multiply
    13,547.56x = 18,689.70 × 7,956.04
  4. Step 4: Simplify right side
    13,547.56x = 148,696,000.79
  5. Step 5: Solve for x
    x = 148,696,000.79/13,547.56
  6. Step 6: Final answer
    x = 10,975.85

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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.