Home / 10,422.51-14,381.77-8,303.43

Finding the Fourth Proportional to 10,422.51, 14,381.77 and 8,303.43

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Solution

The fourth proportional to 10,422.51, 14,381.77 and 8,303.43 is: 11,457.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,422.51 : 14,381.77 = 8,303.43 : x
  2. Step 2: Convert to fraction form
    10,422.51/14,381.77 = 8,303.43/x
  3. Step 3: Cross multiply
    10,422.51x = 14,381.77 × 8,303.43
  4. Step 4: Simplify right side
    10,422.51x = 119,418,020.47
  5. Step 5: Solve for x
    x = 119,418,020.47/10,422.51
  6. Step 6: Final answer
    x = 11,457.70

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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.