Home / 10,381.29-14,315.02-6,838.35

Finding the Fourth Proportional to 10,381.29, 14,315.02 and 6,838.35

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Solution

The fourth proportional to 10,381.29, 14,315.02 and 6,838.35 is: 9,429.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,381.29 : 14,315.02 = 6,838.35 : x
  2. Step 2: Convert to fraction form
    10,381.29/14,315.02 = 6,838.35/x
  3. Step 3: Cross multiply
    10,381.29x = 14,315.02 × 6,838.35
  4. Step 4: Simplify right side
    10,381.29x = 97,891,117.02
  5. Step 5: Solve for x
    x = 97,891,117.02/10,381.29
  6. Step 6: Final answer
    x = 9,429.57

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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.