Home / 10,870.42-15,001.05-6,155.62

Finding the Fourth Proportional to 10,870.42, 15,001.05 and 6,155.62

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Solution

The fourth proportional to 10,870.42, 15,001.05 and 6,155.62 is: 8,494.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,870.42 : 15,001.05 = 6,155.62 : x
  2. Step 2: Convert to fraction form
    10,870.42/15,001.05 = 6,155.62/x
  3. Step 3: Cross multiply
    10,870.42x = 15,001.05 × 6,155.62
  4. Step 4: Simplify right side
    10,870.42x = 92,340,763.40
  5. Step 5: Solve for x
    x = 92,340,763.40/10,870.42
  6. Step 6: Final answer
    x = 8,494.68

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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.