Home / 10,430.04-15,643.16-4,189.80

Finding the Fourth Proportional to 10,430.04, 15,643.16 and 4,189.80

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Solution

The fourth proportional to 10,430.04, 15,643.16 and 4,189.80 is: 6,283.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,430.04 : 15,643.16 = 4,189.80 : x
  2. Step 2: Convert to fraction form
    10,430.04/15,643.16 = 4,189.80/x
  3. Step 3: Cross multiply
    10,430.04x = 15,643.16 × 4,189.80
  4. Step 4: Simplify right side
    10,430.04x = 65,541,711.77
  5. Step 5: Solve for x
    x = 65,541,711.77/10,430.04
  6. Step 6: Final answer
    x = 6,283.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.