Home / 6,970.12-9,618-4,136.47

Finding the Fourth Proportional to 6,970.12, 9,618 and 4,136.47

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Solution

The fourth proportional to 6,970.12, 9,618 and 4,136.47 is: 5,707.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,970.12 : 9,618 = 4,136.47 : x
  2. Step 2: Convert to fraction form
    6,970.12/9,618 = 4,136.47/x
  3. Step 3: Cross multiply
    6,970.12x = 9,618 × 4,136.47
  4. Step 4: Simplify right side
    6,970.12x = 39,784,568.46
  5. Step 5: Solve for x
    x = 39,784,568.46/6,970.12
  6. Step 6: Final answer
    x = 5,707.87

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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.