Home / 7,931.99-10,947.49-4,574.20

Finding the Fourth Proportional to 7,931.99, 10,947.49 and 4,574.20

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Solution

The fourth proportional to 7,931.99, 10,947.49 and 4,574.20 is: 6,313.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.99 : 10,947.49 = 4,574.20 : x
  2. Step 2: Convert to fraction form
    7,931.99/10,947.49 = 4,574.20/x
  3. Step 3: Cross multiply
    7,931.99x = 10,947.49 × 4,574.20
  4. Step 4: Simplify right side
    7,931.99x = 50,075,954.02
  5. Step 5: Solve for x
    x = 50,075,954.02/7,931.99
  6. Step 6: Final answer
    x = 6,313.17

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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.