Home / 9,313.06-12,870.45-7,631.81

Finding the Fourth Proportional to 9,313.06, 12,870.45 and 7,631.81

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Solution

The fourth proportional to 9,313.06, 12,870.45 and 7,631.81 is: 10,547.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,313.06 : 12,870.45 = 7,631.81 : x
  2. Step 2: Convert to fraction form
    9,313.06/12,870.45 = 7,631.81/x
  3. Step 3: Cross multiply
    9,313.06x = 12,870.45 × 7,631.81
  4. Step 4: Simplify right side
    9,313.06x = 98,224,829.01
  5. Step 5: Solve for x
    x = 98,224,829.01/9,313.06
  6. Step 6: Final answer
    x = 10,547.00

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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.