Home / 8,875.85-13,313.70-7,309.51

Finding the Fourth Proportional to 8,875.85, 13,313.70 and 7,309.51

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Solution

The fourth proportional to 8,875.85, 13,313.70 and 7,309.51 is: 10,964.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,875.85 : 13,313.70 = 7,309.51 : x
  2. Step 2: Convert to fraction form
    8,875.85/13,313.70 = 7,309.51/x
  3. Step 3: Cross multiply
    8,875.85x = 13,313.70 × 7,309.51
  4. Step 4: Simplify right side
    8,875.85x = 97,316,590.00
  5. Step 5: Solve for x
    x = 97,316,590.00/8,875.85
  6. Step 6: Final answer
    x = 10,964.21

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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.