Home / 7,750.47-10,677.56-5,388.51

Finding the Fourth Proportional to 7,750.47, 10,677.56 and 5,388.51

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Solution

The fourth proportional to 7,750.47, 10,677.56 and 5,388.51 is: 7,423.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,750.47 : 10,677.56 = 5,388.51 : x
  2. Step 2: Convert to fraction form
    7,750.47/10,677.56 = 5,388.51/x
  3. Step 3: Cross multiply
    7,750.47x = 10,677.56 × 5,388.51
  4. Step 4: Simplify right side
    7,750.47x = 57,536,085.45
  5. Step 5: Solve for x
    x = 57,536,085.45/7,750.47
  6. Step 6: Final answer
    x = 7,423.57

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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.