Home / 10,870.60-15,001.14-6,155.08

Finding the Fourth Proportional to 10,870.60, 15,001.14 and 6,155.08

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Solution

The fourth proportional to 10,870.60, 15,001.14 and 6,155.08 is: 8,493.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,870.60 : 15,001.14 = 6,155.08 : x
  2. Step 2: Convert to fraction form
    10,870.60/15,001.14 = 6,155.08/x
  3. Step 3: Cross multiply
    10,870.60x = 15,001.14 × 6,155.08
  4. Step 4: Simplify right side
    10,870.60x = 92,333,216.79
  5. Step 5: Solve for x
    x = 92,333,216.79/10,870.60
  6. Step 6: Final answer
    x = 8,493.85

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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.