Home / 7,345.65-10,138.30-4,159.13

Finding the Fourth Proportional to 7,345.65, 10,138.30 and 4,159.13

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Solution

The fourth proportional to 7,345.65, 10,138.30 and 4,159.13 is: 5,740.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,345.65 : 10,138.30 = 4,159.13 : x
  2. Step 2: Convert to fraction form
    7,345.65/10,138.30 = 4,159.13/x
  3. Step 3: Cross multiply
    7,345.65x = 10,138.30 × 4,159.13
  4. Step 4: Simplify right side
    7,345.65x = 42,166,507.68
  5. Step 5: Solve for x
    x = 42,166,507.68/7,345.65
  6. Step 6: Final answer
    x = 5,740.34

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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.