Home / 10,870.05-15,000.75-6,154.23

Finding the Fourth Proportional to 10,870.05, 15,000.75 and 6,154.23

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Solution

The fourth proportional to 10,870.05, 15,000.75 and 6,154.23 is: 8,492.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,870.05 : 15,000.75 = 6,154.23 : x
  2. Step 2: Convert to fraction form
    10,870.05/15,000.75 = 6,154.23/x
  3. Step 3: Cross multiply
    10,870.05x = 15,000.75 × 6,154.23
  4. Step 4: Simplify right side
    10,870.05x = 92,318,065.67
  5. Step 5: Solve for x
    x = 92,318,065.67/10,870.05
  6. Step 6: Final answer
    x = 8,492.88

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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.