Home / 18,859.47-26,030.75-10,900.55

Finding the Fourth Proportional to 18,859.47, 26,030.75 and 10,900.55

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Solution

The fourth proportional to 18,859.47, 26,030.75 and 10,900.55 is: 15,045.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,859.47 : 26,030.75 = 10,900.55 : x
  2. Step 2: Convert to fraction form
    18,859.47/26,030.75 = 10,900.55/x
  3. Step 3: Cross multiply
    18,859.47x = 26,030.75 × 10,900.55
  4. Step 4: Simplify right side
    18,859.47x = 283,749,491.91
  5. Step 5: Solve for x
    x = 283,749,491.91/18,859.47
  6. Step 6: Final answer
    x = 15,045.46

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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.