Home / 12,688.39-17,510.45-6,946.25

Finding the Fourth Proportional to 12,688.39, 17,510.45 and 6,946.25

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Solution

The fourth proportional to 12,688.39, 17,510.45 and 6,946.25 is: 9,586.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688.39 : 17,510.45 = 6,946.25 : x
  2. Step 2: Convert to fraction form
    12,688.39/17,510.45 = 6,946.25/x
  3. Step 3: Cross multiply
    12,688.39x = 17,510.45 × 6,946.25
  4. Step 4: Simplify right side
    12,688.39x = 121,631,841.03
  5. Step 5: Solve for x
    x = 121,631,841.03/12,688.39
  6. Step 6: Final answer
    x = 9,586.07

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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.