Home / 10,430.20-14,389.56-6,444.40

Finding the Fourth Proportional to 10,430.20, 14,389.56 and 6,444.40

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Solution

The fourth proportional to 10,430.20, 14,389.56 and 6,444.40 is: 8,890.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,430.20 : 14,389.56 = 6,444.40 : x
  2. Step 2: Convert to fraction form
    10,430.20/14,389.56 = 6,444.40/x
  3. Step 3: Cross multiply
    10,430.20x = 14,389.56 × 6,444.40
  4. Step 4: Simplify right side
    10,430.20x = 92,732,080.46
  5. Step 5: Solve for x
    x = 92,732,080.46/10,430.20
  6. Step 6: Final answer
    x = 8,890.73

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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.