Home / 14,158.17-19,538.19-7,870.50

Finding the Fourth Proportional to 14,158.17, 19,538.19 and 7,870.50

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Solution

The fourth proportional to 14,158.17, 19,538.19 and 7,870.50 is: 10,861.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,158.17 : 19,538.19 = 7,870.50 : x
  2. Step 2: Convert to fraction form
    14,158.17/19,538.19 = 7,870.50/x
  3. Step 3: Cross multiply
    14,158.17x = 19,538.19 × 7,870.50
  4. Step 4: Simplify right side
    14,158.17x = 153,775,324.40
  5. Step 5: Solve for x
    x = 153,775,324.40/14,158.17
  6. Step 6: Final answer
    x = 10,861.24

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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.