Home / 7,347.51-10,139.04-4,159.89

Finding the Fourth Proportional to 7,347.51, 10,139.04 and 4,159.89

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Solution

The fourth proportional to 7,347.51, 10,139.04 and 4,159.89 is: 5,740.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,347.51 : 10,139.04 = 4,159.89 : x
  2. Step 2: Convert to fraction form
    7,347.51/10,139.04 = 4,159.89/x
  3. Step 3: Cross multiply
    7,347.51x = 10,139.04 × 4,159.89
  4. Step 4: Simplify right side
    7,347.51x = 42,177,291.11
  5. Step 5: Solve for x
    x = 42,177,291.11/7,347.51
  6. Step 6: Final answer
    x = 5,740.35

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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.