Home / 10,307.51-14,220.30-6,321.71

Finding the Fourth Proportional to 10,307.51, 14,220.30 and 6,321.71

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Solution

The fourth proportional to 10,307.51, 14,220.30 and 6,321.71 is: 8,721.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,307.51 : 14,220.30 = 6,321.71 : x
  2. Step 2: Convert to fraction form
    10,307.51/14,220.30 = 6,321.71/x
  3. Step 3: Cross multiply
    10,307.51x = 14,220.30 × 6,321.71
  4. Step 4: Simplify right side
    10,307.51x = 89,896,541.61
  5. Step 5: Solve for x
    x = 89,896,541.61/10,307.51
  6. Step 6: Final answer
    x = 8,721.46

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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.