Home / 13,547.58-18,700.38-9,312.66

Finding the Fourth Proportional to 13,547.58, 18,700.38 and 9,312.66

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Solution

The fourth proportional to 13,547.58, 18,700.38 and 9,312.66 is: 12,854.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,547.58 : 18,700.38 = 9,312.66 : x
  2. Step 2: Convert to fraction form
    13,547.58/18,700.38 = 9,312.66/x
  3. Step 3: Cross multiply
    13,547.58x = 18,700.38 × 9,312.66
  4. Step 4: Simplify right side
    13,547.58x = 174,150,280.81
  5. Step 5: Solve for x
    x = 174,150,280.81/13,547.58
  6. Step 6: Final answer
    x = 12,854.72

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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.