Home / 9,776.04-13,493.36-6,423.40

Finding the Fourth Proportional to 9,776.04, 13,493.36 and 6,423.40

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Solution

The fourth proportional to 9,776.04, 13,493.36 and 6,423.40 is: 8,865.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,776.04 : 13,493.36 = 6,423.40 : x
  2. Step 2: Convert to fraction form
    9,776.04/13,493.36 = 6,423.40/x
  3. Step 3: Cross multiply
    9,776.04x = 13,493.36 × 6,423.40
  4. Step 4: Simplify right side
    9,776.04x = 86,673,263.48
  5. Step 5: Solve for x
    x = 86,673,263.48/9,776.04
  6. Step 6: Final answer
    x = 8,865.89

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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.