Home / 9,315.51-13,969.17-4,931.95

Finding the Fourth Proportional to 9,315.51, 13,969.17 and 4,931.95

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Solution

The fourth proportional to 9,315.51, 13,969.17 and 4,931.95 is: 7,395.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,315.51 : 13,969.17 = 4,931.95 : x
  2. Step 2: Convert to fraction form
    9,315.51/13,969.17 = 4,931.95/x
  3. Step 3: Cross multiply
    9,315.51x = 13,969.17 × 4,931.95
  4. Step 4: Simplify right side
    9,315.51x = 68,895,153.48
  5. Step 5: Solve for x
    x = 68,895,153.48/9,315.51
  6. Step 6: Final answer
    x = 7,395.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.