Home / 10,618.69-14,657.21-6,430.45

Finding the Fourth Proportional to 10,618.69, 14,657.21 and 6,430.45

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Solution

The fourth proportional to 10,618.69, 14,657.21 and 6,430.45 is: 8,876.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,618.69 : 14,657.21 = 6,430.45 : x
  2. Step 2: Convert to fraction form
    10,618.69/14,657.21 = 6,430.45/x
  3. Step 3: Cross multiply
    10,618.69x = 14,657.21 × 6,430.45
  4. Step 4: Simplify right side
    10,618.69x = 94,252,456.04
  5. Step 5: Solve for x
    x = 94,252,456.04/10,618.69
  6. Step 6: Final answer
    x = 8,876.09

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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.